University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Bandtaele 2, D-70569 Stuttgart, Germany.
University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Bandtaele 2, D-70569 Stuttgart, Germany.
Bioresour Technol. 2014 Sep;167:297-302. doi: 10.1016/j.biortech.2014.06.037. Epub 2014 Jun 17.
This work describes the production of polyhydroxyalkanoates (PHAs) as a side stream process on a municipal waste water treatment plant (WWTP) at different operation conditions. Therefore various tests were conducted regarding a high PHA production and stable PHA composition. Influence of substrate concentration, temperature, pH and cycle time of an installed feast/famine-regime were investigated. The results demonstrated a strong influence of the operating conditions on the PHA production. Lower substrate concentration, 20°C, neutral pH-value and a 24h cycle time are preferable for high PHA production up to 28.4% of cell dry weight (CDW). PHA composition was influenced by cycle time only and a stable PHA composition was reached.
本工作描述了在不同运行条件下，将聚羟基烷酸酯（PHA）作为市政污水处理厂（WWTP）的副产物进行生产。因此，针对高PHA 生产和稳定的 PHA 组成进行了各种测试。研究了底物浓度、温度、pH 值和安装的丰/饥饿制度的循环时间的影响。结果表明，操作条件对 PHA 生产有很强的影响。较低的底物浓度、20°C、中性 pH 值和 24 小时的循环时间有利于高达 28.4%细胞干重（CDW）的高 PHA 生产。PHA 组成仅受循环时间的影响，并达到稳定的 PHA 组成。
